EP0237748A2 - Mobile inclined elevator - Google Patents

Mobile inclined elevator Download PDF

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Publication number
EP0237748A2
EP0237748A2 EP87101495A EP87101495A EP0237748A2 EP 0237748 A2 EP0237748 A2 EP 0237748A2 EP 87101495 A EP87101495 A EP 87101495A EP 87101495 A EP87101495 A EP 87101495A EP 0237748 A2 EP0237748 A2 EP 0237748A2
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EP
European Patent Office
Prior art keywords
chassis
wheels
hydraulic
drive
elevator according
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP87101495A
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German (de)
French (fr)
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EP0237748A3 (en
EP0237748B1 (en
Inventor
Albert Böcker
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Albert Boecker GmbH and Co KG
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Albert Boecker GmbH and Co KG
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Publication date
Application filed by Albert Boecker GmbH and Co KG filed Critical Albert Boecker GmbH and Co KG
Priority to AT87101495T priority Critical patent/ATE58708T1/en
Publication of EP0237748A2 publication Critical patent/EP0237748A2/en
Publication of EP0237748A3 publication Critical patent/EP0237748A3/en
Application granted granted Critical
Publication of EP0237748B1 publication Critical patent/EP0237748B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/16—Mobile or transportable lifts specially adapted to be shifted from one part of a building or other structure to another part or to another building or structure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B9/00—Kinds or types of lifts in, or associated with, buildings or other structures
    • B66B9/04—Kinds or types of lifts in, or associated with, buildings or other structures actuated pneumatically or hydraulically

Definitions

  • the invention relates to a mobile inclined elevator with a chassis carrying the guide rails and the load-carrying means of the inclined elevator, on which the hydraulic drive for telescoping the guide rails, the method of the load-carrying means and the supply of the inclination adjusting cylinder is arranged.
  • Inclined lifts of the aforementioned type are used in the construction and auxiliary construction industries, in particular for the transport of loads from the ground level to the roof, but also, among other things, as furniture or scaffold lifts.
  • Such lifts have a uniaxial chassis and can be moved from one place to another by truck, car or the like.
  • a drive device is arranged on the chassis, which usually consists of a petrol engine which drives a downstream hydraulic pump that drives the oil flow for driving the hydraulic motors and thus the cable winches or for the supply of one or more hydraulic cylinders.
  • the object of the invention is to make the elevator more mobile in the area of the place of use without a towing vehicle.
  • the elevator should be able to be moved without the aid of several people. It must be taken into account that the chassis wheels must be able to drive over uneven floors individually or together.
  • a hydraulic motor is assigned to each of the two chassis wheels, the drive from the hydraulic motors to the chassis wheels via a friction wheel which can be pressed against the tread of the wheel.
  • This is done in an embodiment of the invention such that both hydraulic motors and thus both friction wheels are connected via a pivot axis common to them; by pivoting the pivot axis, a uniform pressure is exerted on both drive wheels, so that both chassis wheels are carried equally by the hydraulic motors.
  • the hydraulic motors with their - preferably coaxially arranged - friction wheels are arranged according to the invention on bearing flanges, which in turn are non-rotatably connected to the pivot axis.
  • the pivoting movement of the pivot axis is thus transmitted to the friction wheels via the bearing flanges and the hydraulic motors. Since the axis of the friction wheels is therefore axially parallel, but not coaxial to the swivel axis, there is a leverage effect that presses the friction wheels sufficiently strongly against the tread of the Chassis wheels enabled.
  • the friction wheels are preferably provided on their outer surface with grooves or the like, in order to achieve an optimal force transmission by means of frictional engagement on the running surface of the drive wheels.
  • the chassis wheels can be driven via the tread by means of friction wheel drives arranged in front of the chassis wheels in the direction of travel and by means of friction wheel drives arranged behind the chassis wheels in the direction of travel.
  • the power split Since different soil conditions are encountered in the construction site process, it may be advisable to design the power split so that it can be operated either with a differential or with a differential lock, i.e. that, for example, a differential lock can be used if, in the case of a uniaxial design of the elevator, a wheel has to pass over a curb, which requires the simultaneous drive of both wheels.
  • a control block is assigned, which is a 4/3-way valve located in the pump line tax valve has a 4/2-way valve serving as a changeover valve for differential operation and differential lock in the line leading to the hydraulic motors, a supply line leading to a hydraulic motor in each case being provided between the control valve and the changeover valve.
  • the result is an improvement in the mobility of the elevator using the existing energy supply.
  • the chassis 1 has a chassis frame 7 in a known manner, of which only the side rails 23 are shown.
  • a support plate 25 (on the right and left in each case) is arranged on the side rails 23 via an angle 24, on which the bearing 8 for a pivoting element 6 is fastened.
  • the pivot element 6 consists essentially of a pivot axis 9 which is non-rotatably connected at the end to bearing flanges 11. As shown in FIG. 2, these bearing flanges 11 project downward from the pivot axis 9 and at the same time form the bearing or attachment for two hydraulic motors 2 and 2 ⁇ , to which the friction wheels 5 are connected coaxially on the output side.
  • the pivoting of the pivot axis 9 takes place via an adjusting lever 10, which is equipped in a manner known per se with a locking device 26, the eccentric cooperates with a corresponding backdrop 27.
  • angle levers 28 are arranged, which in turn are firmly connected to the pivot axis 9 and transmit the movement to the pivot axis 9.
  • Fig. 3 shows the position of the control lever in the released position.
  • the control lever 10 is arranged in the vicinity of a control block 13, from which the hydraulic lines, which are described in more detail in the circuit diagram, lead to the two hydraulic motors 2 and 2 ⁇ .
  • both hydraulic motors are driven in the same way, but in the opposite direction of rotation.
  • the line 21 shown in broken lines serves as a leak oil line.

Abstract

A mobile inclined elevator for the construction and construction-related industry, the essence of the invention being aimed at branching off a supply line while utilising the drive device, arranged on the chassis of the elevator, for the telescoping of the guide rail and the movement of the load-lifting member, and the supply for the inclination actuating cylinder, via which supply line, with a corresponding control block in between, the chassis wheels of the inclined elevator can be driven. <IMAGE>

Description

Die Erfindung betrifft einen mobilen Schrägaufzug mit ei­nem die Führungsschienen und das Lastaufnahmemittel des Schrägaufzuges tragenden Fahrgestell, an dem der hydraulische Antrieb für das Teleskopieren der Führungs­schienen, das Verfahren des Lastaufnahmemittels und die Versorgung des Neigungsstellzylinders angeordnet ist.The invention relates to a mobile inclined elevator with a chassis carrying the guide rails and the load-carrying means of the inclined elevator, on which the hydraulic drive for telescoping the guide rails, the method of the load-carrying means and the supply of the inclination adjusting cylinder is arranged.

Schrägaufzüge der vorgenannten Art finden Verwendung im Baugewerbe und Bauhilfsgewerbe, insbesondere zum Transport von Lasten aus dem ebenerdigen Bereich zum Dach, unter anderem jedoch auch als Möbel- oder Gerüst­aufzüge.Inclined lifts of the aforementioned type are used in the construction and auxiliary construction industries, in particular for the transport of loads from the ground level to the roof, but also, among other things, as furniture or scaffold lifts.

Derartige Aufzüge besitzen ein einachsiges Fahrgestell und können mittels LKW, PKW oder dgl. von einem Einsatzort zum anderen verbracht werden. Zum Teleskopieren der einzel­nen Führungsschienen, zum Betreiben des Lastaufnahmemittels sowie zur hydraulischen Versorgung des Neigungsstellzy­linders, über den die Schräglage des Aufzuges einstellbar ist, ist am Fahrgestell eine Antriebsvorrichtung ange­ordnet, welche im Regelfall aus einem Benzinmotor be­steht, welcher eine nachgeschaltete Hydraulikpumpe antreibt, die den Ölstrom für den Antrieb der Hydrau­likmotore und damit der Seilwinden bzw. für die Versor­gung eines oder mehrerer hydraulischer Zylinder liefert.Such lifts have a uniaxial chassis and can be moved from one place to another by truck, car or the like. For telescoping the individual guide rails, for operating the load handler As well as for the hydraulic supply of the tilt adjustment cylinder, via which the inclined position of the elevator can be adjusted, a drive device is arranged on the chassis, which usually consists of a petrol engine which drives a downstream hydraulic pump that drives the oil flow for driving the hydraulic motors and thus the cable winches or for the supply of one or more hydraulic cylinders.

Bei derartigen Schrägaufzügen wurde es als nachteilig empfunden, daß das Transportfahrzeug den Aufzug in vielen Fällen aufgrund örtlicher Gegebenheiten nur bis in den mittelbaren Bereich des Einsatzortes verbringen kann. Das bedeutet, daß der Aufzug mit entsprechendem Aufwand unter Zuhilfenahme mehrerer Personen zum un­mittelbaren Einsatzort gebracht werden muß. Dies gilt insbesondere auch, wenn - z. B. bei Dachdeckerarbeiten - die Position des Aufzuges mit Bezug auf das Gebäude gewechselt werden muß, um die Transportwege im Dachbe­reich so kurz wie möglich zu halten.With inclined elevators of this type, it was found to be disadvantageous that the transport vehicle can in many cases, due to local conditions, only spend the elevator in the indirect area of the place of use. This means that the elevator has to be brought to the immediate place of use with the help of several people. This also applies in particular if - e.g. B. in roofing work - the position of the elevator with respect to the building must be changed to keep the transport routes in the roof area as short as possible.

Ausgehend von dieser Problemstellung liegt der Erfindung die Aufgabe zugrunde, den Aufzug unter Verzicht auf ein schleppendes Fahrzeug im Bereich des Einsatzortes mobiler zu gestalten. Der Aufzug soll - soweit es sich um rela­tiv kurze Wege handelt - ohne Zuhilfenahme mehrerer Per­sonen verfahren werden können. Dabei ist zu berück­sichtigen, daß die Fahrgestellräder jeweils einzeln oder gemeinsam Bodenunebenheiten überfahren können müssen.Based on this problem, the object of the invention is to make the elevator more mobile in the area of the place of use without a towing vehicle. As far as the distances are relatively short, the elevator should be able to be moved without the aid of several people. It must be taken into account that the chassis wheels must be able to drive over uneven floors individually or together.

Die Erfindung löst die gestellte Aufgabe mit der Lehre nach Anspruch 1. Hiernach wird auf die Versorgung durch einen Fremdantrieb, wie z. B. ein fremdes Fahrzeug, ver­zichtet und gewissermaßen von der ohnehin am Fahrgestell vorhandenen Eigenversorgung für die einzelnen Funk­tionsabläufe des Aufzuges eine Leistungsverzweigung abgenommen, die dem Antrieb des oder der Antriebsräder des Aufzuges selbst dient. Hierdurch wird ermöglicht, daß der Bedienungsmann, welcher das Ausfahren der Füh­rungsschienen, die Bewegung des Lastaufnahmemittels und dgl. vornimmt, mittels der ohnehin vorhandenen An­triebsvorrichtung den gesamten Aufzug von einer Gebrauchsposition in eine andere verbringen kann.The invention solves the problem with the teaching of claim 1. Hereinafter, the supply by an external drive, such as. B. a foreign vehicle, waived and to some extent from the anyway on the chassis existing self-supply for the individual functional sequences of the elevator, a power split is removed, which serves to drive the drive wheel or wheels of the elevator itself. This makes it possible for the operator, who carries out the extension of the guide rails, the movement of the load-carrying means and the like, to be able to move the entire elevator from one use position to another by means of the drive device which is present anyway.

Einzelheiten der Erfindung sind durch die Unteransprüche gekennzeichnet.Details of the invention are characterized by the subclaims.

In besonders vorteilhafter Ausgestaltung ist jedem der beiden Fahrgestellräder ein Hydraulikmotor zugeordnet, wobei der Antrieb von den Hydraulikmotoren auf die Fahr­gestellräder über ein Reibrad erfolgt, welches gegen die Lauffläche des Rades anpreßbar ist. Dies erfolgt in Ausgestaltung der Erfindung derart, daß beide Hydrau­likmotore und damit beide Reibräder über eine ihnen gemeinsame Schwenkachse verbunden sind; durch Ver­schwenken der Schwenkachse wird auf beide Antriebsräder ein gleichmäßiger Andruck ausgeübt, so daß beide Fahr­gestellräder gleichmäßig von den Hydraulikmotoren mit­genommen werden. Die Hydraulikmotoren mit ihren - vor­zugsweise koaxial angeordneten - Reibrädern sind er­findungsgemäß an Lagerflanschen angeordnet, die ihrer­seits undrehbar mit der Schwenkachse verbunden sind. Die Schwenkbewegung der Schwenkachse wird somit über die Lagerflansche und die Hydraulikmotore auf die Reib­räder übertragen. Da die Achse der Reibräder somit zwar achsparallel, jedoch nicht koaxial zur Schwenkachse liegt, ergibt sich eine Hebelwirkung, die ein ausreichend starkes Anpressen der Reibräder an die Lauffläche der Fahrgestellräder ermöglicht. Die Reibräder sind vorzugs­weise an ihrer Mantelfläche mit Nuten oder dgl. verse­hen, um eine optimale Kraftübertragung mittels Reib­schluß auf die Lauffläche der Antriebsräder zu erzielen. Der Antrieb der Fahrgestellräder über die Lauffläche kann sowohl über in Fahrtrichtung vor den Fahrgestell­rädern als auch über in Fahrtrichtung hinter den Fahr­gestellrädern angeordnete Reibradantriebe erfolgen. Aus­gehend von der dem Anspruch 1 zugrundeliegenden techni­schen Lehre kann die Erfindung auch so verwirklicht wer­den, daß gemäß Anspruch 9 die Leistungsverzweigung dem Antrieb der Fahrgestellräder über einen hydraulischen Radnabenmotor, einem auf die Radachse der Fahrgestellräder wirkenden Keilriemenantrieb oder einem Kegelstirnradan­trieb, welcher ebenfalls unmittelbar auf die Radachse wirkt, dient.In a particularly advantageous embodiment, a hydraulic motor is assigned to each of the two chassis wheels, the drive from the hydraulic motors to the chassis wheels via a friction wheel which can be pressed against the tread of the wheel. This is done in an embodiment of the invention such that both hydraulic motors and thus both friction wheels are connected via a pivot axis common to them; by pivoting the pivot axis, a uniform pressure is exerted on both drive wheels, so that both chassis wheels are carried equally by the hydraulic motors. The hydraulic motors with their - preferably coaxially arranged - friction wheels are arranged according to the invention on bearing flanges, which in turn are non-rotatably connected to the pivot axis. The pivoting movement of the pivot axis is thus transmitted to the friction wheels via the bearing flanges and the hydraulic motors. Since the axis of the friction wheels is therefore axially parallel, but not coaxial to the swivel axis, there is a leverage effect that presses the friction wheels sufficiently strongly against the tread of the Chassis wheels enabled. The friction wheels are preferably provided on their outer surface with grooves or the like, in order to achieve an optimal force transmission by means of frictional engagement on the running surface of the drive wheels. The chassis wheels can be driven via the tread by means of friction wheel drives arranged in front of the chassis wheels in the direction of travel and by means of friction wheel drives arranged behind the chassis wheels in the direction of travel. Based on the technical teaching on which claim 1 is based, the invention can also be implemented in such a way that, according to claim 9, the power split is used to drive the chassis wheels via a hydraulic wheel hub motor, a V-belt drive acting on the wheel axle of the chassis wheels or a bevel spur gear drive, which is also directly on the wheel axle acts, serves.

Da bei dem Verfahren im Baustellenbereich unterschiedliche Bodenverhältnisse angetroffen werden, kann es zweckmäßig sein, die Leistungsverzweigung so auszubilden, daß sie wahlweise mit Differential oder mit Differentialsperre gefahren werden kann, d.h. daß beispielsweise mit Diffe­rentialsperre gefahren werden kann, wenn bei einachsiger Ausbildung des Aufzuges ein Rad einen Bordstein überfahren muß, wozu der gleichzeitige Antrieb beider Räder erforderlich ist.Since different soil conditions are encountered in the construction site process, it may be advisable to design the power split so that it can be operated either with a differential or with a differential lock, i.e. that, for example, a differential lock can be used if, in the case of a uniaxial design of the elevator, a wheel has to pass over a curb, which requires the simultaneous drive of both wheels.

Sinngemäß wird in Ausgestaltung der Erfindung vorgeschlagen, daß unter Verwendung der hydraulischen Antriebsvorrichtung für das Teleskopieren der Führungsschienen, das Verfah­ren des Lastaufnahmemittels und der Versorgung des Nei­gungsstellzylinders der Antriebsvorrichtung ein Steuer­block zugeordnet ist, welcher ein in der Pumpenleitung liegendes, als 4/3-Wegeventil ausgebildetes Steuer­ ventil aufweist, dem in der zu den Hydraulikmotoren führenden Leitung ein als Umschaltventil für Differen­tialbetrieb und Differentialsperre dienendes 4/2-Wege­ventil nachgordnet ist, wobei zwischen dem Steuerventil und dem Umschaltventil jeweils eine zu jeweils einem Hydraulikmotor führende Versorgungsleitung vorgesehen ist. Mittels dieser - an sich bekannten - Steuerung kann mit Bezug auf den hier in Frage stehenden mobilen Auf­zug von dem Bedienungsmann eine Anpassung an die ört­lichen Verhältnisse vorgenommen werden, in dem er den Antrieb wahlweise auf Differentialbetrieb oder Diffe­rentialsperre umschalten kann.Analogously, it is proposed in an embodiment of the invention that using the hydraulic drive device for telescoping the guide rails, the method of the load suspension device and the supply of the inclination adjusting cylinder of the drive device, a control block is assigned, which is a 4/3-way valve located in the pump line tax valve has a 4/2-way valve serving as a changeover valve for differential operation and differential lock in the line leading to the hydraulic motors, a supply line leading to a hydraulic motor in each case being provided between the control valve and the changeover valve. By means of this control, which is known per se, the operator can make an adjustment to the local conditions with reference to the mobile elevator in question, in which he can selectively switch the drive to differential operation or differential lock.

Im Ergebnis wird eine Verbesserung der Mobilität des Auf­zuges unter Nutzung der ohnehin vorhandenen Energie­versorgung erreicht.The result is an improvement in the mobility of the elevator using the existing energy supply.

Die Erfindung wird nachfolgend anhand eines Ausführungs­beispieles näher erläutert.The invention is explained in more detail below using an exemplary embodiment.

Es zeigen:

  • Fig. 1 die Vorderansicht des Fahrgestells gegen die Fahrgestellräder gesehen
  • Fig. 2 eine Seitenansicht gemäß Fig. 1
  • Fig. 3 den Reibradantrieb gemäß Fig. 2 in gelöster Position
  • Fig. 4 den Schaltplan für die Antriebsvorrichtung
Show it:
  • Fig. 1 seen the front view of the chassis against the chassis wheels
  • 2 is a side view of FIG .. 1
  • 3 shows the friction wheel drive according to FIG. 2 in the released position
  • Fig. 4 shows the circuit diagram for the drive device

In der Vorderansicht gemäß Fig. 1 wurde aus Gründen der Übersichtlichkeit die die beiden Fahrgestellräder 3 ver­bindende Radachse 12 nur strichpunktiert angedeutet. Das Fahrgestell 1 weist in bekannter Weise einen Fahrgestell­rahmen 7 auf, von dem nur die Seitenholme 23 dargestellt sind. Über einen Winkel 24 ist an den Seitenholmen 23 eine Tragplatte 25 (jeweils rechts und links) angeordnet, an welcher das Lager 8 für ein Schwenkelement 6 befestigt ist. Das Schwenkelement 6 besteht im wesentlichen aus einer Schwenkachse 9, die endseitig undrehbar mit Lager­flanschen 11 verbunden ist. Wie die Fig. 2 ausweist, ra­gen diese Lagerflansche 11 von der Schwenkachse 9 nach unten und bilden gleichzeitig das Lager bzw. die Be­festigung für zwei Hydraulikmotore 2 und 2ʹ, an die aus­gangsseitig koaxial die Reibräder 5 angeschlossen sind.In the front view according to FIG. 1, the wheel axle 12 connecting the two chassis wheels 3 was only indicated by dash-dotted lines for reasons of clarity. The chassis 1 has a chassis frame 7 in a known manner, of which only the side rails 23 are shown. A support plate 25 (on the right and left in each case) is arranged on the side rails 23 via an angle 24, on which the bearing 8 for a pivoting element 6 is fastened. The pivot element 6 consists essentially of a pivot axis 9 which is non-rotatably connected at the end to bearing flanges 11. As shown in FIG. 2, these bearing flanges 11 project downward from the pivot axis 9 and at the same time form the bearing or attachment for two hydraulic motors 2 and 2ʹ, to which the friction wheels 5 are connected coaxially on the output side.

Die Verschwenkung der Schwenkachse 9 erfolgt über einen Stellhebel 10, welcher in an sich bekannter Weise mit einer Rastvorrichtung 26 ausgerüstet ist, deren Exzenter mit einer entsprechenden Kulisse 27 zusammenwirkt.The pivoting of the pivot axis 9 takes place via an adjusting lever 10, which is equipped in a manner known per se with a locking device 26, the eccentric cooperates with a corresponding backdrop 27.

Am unteren Ende des Stellhebels 10 sind Winkelhebel 28 angeordnet, welche ihrerseits fest mit der Schwenkachse 9 verbunden sind und die Bewegung auf die Schwenkachse 9 übertragen.At the lower end of the actuating lever 10, angle levers 28 are arranged, which in turn are firmly connected to the pivot axis 9 and transmit the movement to the pivot axis 9.

Aus der Fig. 2 ist ersichtlich, daß bei Bewegung des Stellhebels 10 in Pfeilrichtung 10a beide Reibräder gegen die Lauffläche (Mantelfläche 4) des jeweiligen Fahrgestell­rades angepreßt werden.From Fig. 2 it can be seen that when the control lever 10 moves in the direction of arrow 10a both friction wheels are pressed against the tread (outer surface 4) of the respective chassis wheel.

Fig. 3 zeigt die Stellung des Stellhebels in gelöster Position.Fig. 3 shows the position of the control lever in the released position.

Der Stellhebel 10 ist in der Nähe eines Steuerblockes 13 angeordnet, von dem die hydraulischen Leitungen, welche im Schaltbild näher beschrieben sind, zu den beiden Hy­draulikmotoren 2 und 2ʹ führen.The control lever 10 is arranged in the vicinity of a control block 13, from which the hydraulic lines, which are described in more detail in the circuit diagram, lead to the two hydraulic motors 2 and 2ʹ.

Aus der Fig. 4 ist ersichtlich, daß der von der Pumpe 18 - welche der Energieversorgung der Teleskopschienen, des Lastaufnahmemittels und des Neigungsstellzylinders dient - kommende Ölstrom über die Pumpenleitung 15 dem Steuerventil 14 zugeführt wird. In der dargestellten Schaltstellung b fließt der Pumpenstrom über die Rück­laufleitung 19 zurück in den Tank.From Fig. 4 it can be seen that the oil flow coming from the pump 18 - which serves to supply energy to the telescopic rails, the load-carrying means and the inclination adjusting cylinder - is supplied to the control valve 14 via the pump line 15. In the switching position b shown, the pump current flows back into the tank via the return line 19.

Bei der Schaltstellung a des Steuerventils 14 und ent­sprechender Schaltstellung a des nachgeordneten Umschaltven­tils 16 wird der Ölstrom über die Versorungsleitung 17 dem Hydraulikmotor 2 und über die weitere Leitung 22 dem Hy­draulikmotor 2ʹ sowie die Leitung 17ʹ und die Rücklauflei­ tung 19 dem Tank 20 zufließen. Beide Hydromotore werden gleichsinnig im geschlossenen Ölstrom liegend ange­trieben, d.h. es wird mit Differentialsperre gefahren.In the switching position a of the control valve 14 and the corresponding switching position a of the downstream changeover valve 16, the oil flow via the supply line 17 to the hydraulic motor 2 and via the further line 22 to the hydraulic motor 2ʹ as well as the line 17ʹ and the return line device 19 flow to the tank 20. Both hydraulic motors are driven lying in the same direction in a closed oil flow, ie the differential lock is used.

Bei entsprechender Schaltstellung c des Steuerventils 14 und Beibehaltung der Schaltstellung a des Umschalt­ventils 16 werden beide Hydromotore in gleicher Weise, jedoch in umgekehrter Drehrichtung angetrieben.With a corresponding switching position c of the control valve 14 and maintaining the switching position a of the changeover valve 16, both hydraulic motors are driven in the same way, but in the opposite direction of rotation.

In der Schaltstellung a des Steuerventils 14 und der Schaltstellung b des Umschaltventils 16 gelangt die Druckflüssigkeit über die Leitung 17 zum Hydraulikmotor 2 und über die Leitung 22 und die Rücklaufleitung 19 zum Tank zurück. Gleichzeitig wird über die Leitung 15 und die Leitung 22 der Hydraulikmotor 2ʹ angetrieben, wobei die Druckflüssigkeit über die Leitung 17ʹ und die Rücklaufleitung 19 ebenfalls zum Tank 20 zurück­fließt. Es findet somit ein Belastungsausgleich zwischen den beiden Motoren statt, d.h. es wird im Differential­betrieb gefahren.In the switching position a of the control valve 14 and the switching position b of the changeover valve 16, the pressure fluid returns to the hydraulic motor 2 via the line 17 and back to the tank via the line 22 and the return line 19. At the same time, the hydraulic motor 2ʹ is driven via the line 15 and the line 22, the hydraulic fluid also flowing back to the tank 20 via the line 17ʹ and the return line 19. There is therefore a load balance between the two motors, i.e. it is operated in differential mode.

Die strichpunktiert dargestellte Leitung 21 dient als Leckölleitung.The line 21 shown in broken lines serves as a leak oil line.

BezugszeichenlisteReference symbol list

  • 1  =  Fahrgestell1 = chassis
  • 2, 2ʹ  =  Hydraulikmotore2, 2ʹ = hydraulic motors
  • 3  =  Fahrgestellräder3 = chassis wheels
  • 4  =  Mantelfläche des Fahrgestellrades4 = lateral surface of the chassis wheel
  • 5  =  Reibrad5 = friction wheel
  • 6  =  Schwenkelement6 = swivel element
  • 7  =  Fahrgestellrahmen7 = chassis frame
  • 8  =  Lager der Schwenkachse 98 = bearing of the pivot axis 9
  • 9  =  Schwenkachse9 = swivel axis
  • 10  =  Stellhebel10 = control lever
  • 10a  =  Pfeilrichtung10a = arrow direction
  • 11  =  Lagerflansche11 = bearing flanges
  • 12  =  Radachse12 = wheel axle
  • 13  =  Steuerblock13 = control block
  • 14  =  Steuerventil14 = control valve
  • 15  =  Pumpenleitung15 = pump line
  • 16  =  Umschaltventil16 = changeover valve
  • 17, 17ʹ  =  Versorgungsleitung17, 17ʹ = supply line
  • 18  =  Pumpe18 = pump
  • 19  =  Rücklauf19 = return
  • 20  =  Tank20 = tank
  • 21  =  Leckölleitung21 = drain line
  • 22  =  Leitung22 = line
  • 23  =  Seitenholme des Fahrgestells23 = side rails of the chassis
  • 24  =  Winkel24 = angle
  • 25  =  Tragplatte25 = support plate
  • 26  =  Rastvorrichtung26 = locking device
  • 27  =  Kulisse27 = backdrop
  • 28  =  Winkelhebel28 = angle lever
  • a  =  Schaltstellungena = switch positions
  • b  =  Schaltstellungenb = switch positions
  • c  =  Schaltstellungenc = switch positions

Claims (11)

1. Mobiler Schrägaufzug mit einem die Führungsschie­nen und das Lastaufnahmemittel des Schrägaufzuges tragenden Fahrgestell, an dem der hydraulische Antrieb für das Teleskopieren der Führungsschie­nen, das Verfahren des Lastaufnahmemittels und die Versorgung des Neigungsstellzylinders angeordnet ist, dadurch gekennzeichnet, daß der hydraulische Antrieb der Versorgung mindestens eines weiteren Hydraulikmotors zum Antrieb wenigs­tens eines der Fahrgestellräder dient.1. Mobile inclined elevator with the guide rails and the load-carrying means of the sloping elevator supporting chassis on which the hydraulic drive for telescoping the guide rails, the method of the load receiving means and the supply is disposed of the tilt actuating cylinder, characterized in that the hydraulic drive of the supply of at least one further hydraulic motor for driving at least one of the chassis wheels. 2. Schrägaufzug nach Anspruch 1, dadurch gekennzeichnet, daß jedem der beiden Fahrgestellräder ein Hydrau­likmotor zugeordnet ist.2. Sloping elevator according to claim 1, characterized in that each of the two chassis wheels is associated with a hydraulic motor. 3. Schrägaufzug nach Anspruch 1, dadurch gekennzeichnet, daß der Antrieb des Fahrgestellrades oder der Fahr­gestellräder über Reibschluß erfolgt.In that the drive of the chassis or wheel undercarriage wheels is 3. Sloping elevator according to claim 1, characterized by friction. 4. Schrägaufzug nach Anspruch 3, dadurch gekennzeichnet, daß der oder die Hydraulikmotore (2, 2ʹ) ausgangsseitig ein gegen die Mantelfläche (4) (Lauffläche) des Fahrgestellrades anpreßbares Reibrad (5) aufweisen.4. Sloping elevator according to claim 3, characterized in that the one or more hydraulic motors (2, 2 ') on the output side have a anpreßbares against the outer surface (4) (running surface) of the chassis wheel friction wheel (5). 5. Schrägaufzug nach einem der Ansprüche 1 - 4, dadurch gekennzeichnet, daß jedem der beiden Fahrgestellräder (3) ein mit einem Reibrad versehener Hydraulikmotor (2, 2ʹ) zugeordnet ist und beide Hydraulikmotore mit den Ihnen zugeordneten Reibrädern (5) über ein gemein­ sames Schwenkelement (6) gegenüber dem Fahrgestell­rahmen (7) gegen die Mantelfläche (4) (Lauffläche) der Fahrgestellräder schwenkbar sind.5. Sloping elevator according to any one of claims 1-4, characterized in that each of the two chassis wheels (3) provided with a friction wheel hydraulic motor (2, 2 ') is associated, and both hydraulic motors with their associated friction wheels (5) common to a same swivel element (6) relative to the chassis frame (7) against the outer surface (4) (tread) of the chassis wheels are pivotable. 6. Schrägaufzug nach Anspruch 5, dadurch gekennzeichnet, daß das den beiden Hydraulikmotoren (2, 2') gemeinsame Schwenkelement (6) eine in Lagern (8) des Fahrge­stells (1) drehbar gelagerte Schwenkachse (9) ist.That this is 6. Sloping elevator according to claim 5, characterized in that the two hydraulic motors (2, 2 ') common pivot element (6) a rotatably mounted in bearings (8) of the chassis (1) pivot axis (9). 7. Schrägaufzug nach Anspruch 5 und 6, dadurch gekenn­zeichnet, daß die Verschwenkung der Schwenkachse (9) durch einen selbstsperrenden Stellhebel (10) erfolgt.7. Sloping elevator according to Claims 5 and 6, characterized in that the pivoting of the pivot axis (9) is effected by a self-locking lever (10). 8. Schrägaufzug nach Anspruch 5 - 7, dadurch gekenn­zeichnet, daß die Hydraulikmotore (2, 2ʹ) achs­versetzt mit der Schwenkachse (9) an undrehbar mit dieser verbundenen Lagerflanschen (11) be­festigt sind.8. Sloping elevator according to claim 5-7, characterized in that the hydraulic motors (2, 2') off-axis with the pivot axis (9) are fixed non-rotatably connected to the latter bearing flanges (11). 9. Schrägaufzug nach Anspruch 1, dadurch gekennzeichnet, daß der Antrieb der Fahrgestellräder (3) über ei­nen hydraulischen Radnabenmotor, einen auf die Radachse (12) der Fahrgestellräder wirkenden Keil­riemenantrieb, einen Kegelstirnradantrieb, oder dgl. erfolgt.That the drive of the chassis wheels (3) via a hydraulic hub motor, acting on the wheel axle (12) of the chassis wheels V-belt drive, a Kegelstirnradantrieb, or. Occurs 9. Sloping elevator according to claim 1, characterized the like. 10. Schrägaufzug nach Anspruch 1, dadurch gekennzeichnet, daß der Antrieb vorderseitig (in Fahrtrichtung gese­hen) gegen die Mantelfläche (4) (Lauffläche) des oder der Fahrgestellräder (3) erfolgt.10. Sloping elevator according to claim 1, characterized in that the drive front side (seen in the direction of travel) against the surface (4) (running surface) of the chassis or the wheels is carried out (3). 11. Steuerung für die Versorgung zweier Hydraulikmotore zum Antrieb zweier Fahrgestellräder des Fahrgestells eines einachsigen Schrägaufzuges, dadurch gekenn­zeichnet, daß unter Verwendung der hydraulischen Antriebsvorrichtung für das Teleskopieren der Füh­rungsschienen, das Verfahren des Lastaufnahmemittels oder dgl. der Antriebsvorrichtung ein Steuerblock (13) zugeordnet ist, welcher ein in der Pumpenleitung (15) liegendes, als 4/3-Wegeventil ausgebildetes Steuerventil (14) aufweist, dem in der zu den Hydraulikmotoren (2, 2ʹ) führenden Pumpenleitung ein als Umschaltventil (16) für Differentialbetrieb und Differentialsperre dienendes 4/2-Wegeventil nachgeordnet ist, wobei zwischen dem Steuerventil und dem Umschaltventil jeweils eine zu jeweils einem Hydraulikmotor (2, 2ʹ) führende Versorgungs­leitung (17, 17ʹ) vorgesehen ist.11. Control for the supply of two hydraulic motors of two to drive chassis wheels of the chassis of a single-axle sloping elevator, characterized in that, using the hydraulic drive device for telescoping the guide rails, the method of the load-carrying means or the like. Of the drive device is assigned a control block (13), which has a control valve (14) located in the pump line (15) and designed as a 4/3-way valve, the 4/2 in the pump line leading to the hydraulic motors (2, 2ʹ) serving as a changeover valve (16) for differential operation and differential lock - Directional control valve is arranged downstream, a supply line (17, 17ʹ) leading to a hydraulic motor (2, 2ʹ) each being provided between the control valve and the changeover valve.
EP87101495A 1986-03-14 1987-02-04 Mobile inclined elevator Expired - Lifetime EP0237748B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT87101495T ATE58708T1 (en) 1986-03-14 1987-02-04 MOBILE INCLINED ELEVATOR.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3608590 1986-03-14
DE19863608590 DE3608590A1 (en) 1986-03-14 1986-03-14 MOBILE SLOPE LIFT

Publications (3)

Publication Number Publication Date
EP0237748A2 true EP0237748A2 (en) 1987-09-23
EP0237748A3 EP0237748A3 (en) 1988-09-07
EP0237748B1 EP0237748B1 (en) 1990-11-28

Family

ID=6296394

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87101495A Expired - Lifetime EP0237748B1 (en) 1986-03-14 1987-02-04 Mobile inclined elevator

Country Status (6)

Country Link
EP (1) EP0237748B1 (en)
AT (1) ATE58708T1 (en)
CZ (1) CZ277737B6 (en)
DE (2) DE3608590A1 (en)
ES (1) ES2019071B3 (en)
SU (1) SU1554762A3 (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170414A (en) * 1965-11-23 1969-11-12 Lenson Engineering Company Improvements in or relating to Mobile Lifts or Elevators
US4000787A (en) * 1974-09-16 1977-01-04 Groenig Robert E Vehicle for picking fruit
DE2658250A1 (en) * 1975-12-23 1977-07-07 Fulton Industries MOBILE AND LIFTING BASKET
GB2007402A (en) * 1977-10-06 1979-05-16 Simon Krause Inc Control system for mobile self-propelled aerial lift
AT351201B (en) * 1974-04-08 1979-07-10 Kuenz Hans Masch CONTROL FOR HYDRAULIC DRIVES IN CRANE SYSTEMS

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1170414A (en) * 1965-11-23 1969-11-12 Lenson Engineering Company Improvements in or relating to Mobile Lifts or Elevators
AT351201B (en) * 1974-04-08 1979-07-10 Kuenz Hans Masch CONTROL FOR HYDRAULIC DRIVES IN CRANE SYSTEMS
US4000787A (en) * 1974-09-16 1977-01-04 Groenig Robert E Vehicle for picking fruit
DE2658250A1 (en) * 1975-12-23 1977-07-07 Fulton Industries MOBILE AND LIFTING BASKET
GB2007402A (en) * 1977-10-06 1979-05-16 Simon Krause Inc Control system for mobile self-propelled aerial lift

Also Published As

Publication number Publication date
DE3766390D1 (en) 1991-01-10
DE3608590A1 (en) 1987-09-17
ES2019071B3 (en) 1991-06-01
ATE58708T1 (en) 1990-12-15
CZ277737B6 (en) 1993-04-14
EP0237748A3 (en) 1988-09-07
EP0237748B1 (en) 1990-11-28
SU1554762A3 (en) 1990-03-30
CS8701555A2 (en) 1991-10-15

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